I liked the one with the gamebirds. The one with the monetary symbols struck me as a little corny if you're in the field of finance. The one with the tennis rackets is okay, I suppose, if you're very into tennis.
I think "club ties" of this sort rate rather low on the "formality continuum," but few men who are not Internet Gentlemen will be cognizant of this.
Just my $.02, which is all my opinion is worth.